1243300034 has 4 divisors (see below), whose sum is σ = 1864950054. Its totient is φ = 621650016.

The previous prime is 1243299997. The next prime is 1243300063. The reversal of 1243300034 is 4300033421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4300033421 = 71 ⋅60563851.

It can be written as a sum of positive squares in only one way, i.e., 1132524409 + 110775625 = 33653^2 + 10525^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1243299979 and 1243300015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310825007 + ... + 310825010.

Almost surely, 2^1243300034 is an apocalyptic number.

1243300034 is a deficient number, since it is larger than the sum of its proper divisors (621650020).

1243300034 is an equidigital number, since it uses as much as digits as its factorization.

1243300034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621650019.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1243300034 is about 35260.4599232625. The cubic root of 1243300034 is about 1075.2892775491.

Adding to 1243300034 its reverse (4300033421), we get a palindrome (5543333455).

The spelling of 1243300034 in words is "one billion, two hundred forty-three million, three hundred thousand, thirty-four".